Woven-wire belt for paper-making machines



Sept. 1, 1931. N, w WEBB 1,821,455

WOVEN WIRE BELT FOR PAPER MAKING MACHINES Filed Dec. 12, 1929 r ll l l iE w h U F1 INVENTOR. NELBDNNNEBE.

. ATTORNEY.

Patented Sept. 1, 1931 UNETD STATES PATENT OFFICE NELSON W. WEBB. FBELLEVILLE, NEW JERSEY, ASSIGNOR TO EASTWOOD WIRE CORPORATION, OFBELLEVILLE, NEW JERSEY, A CORPORATICN OF NEW JERSEY WOVEN-WIRE BELT FORPAPER-.MAKING MACHINFS Application filed December 12, 1929. Serial No.413,575.

The present invention relates to woven wire belts, particularly forpaper-making machines of the Fourdrinier type. and has for an object toprovide an improved seam or jointure between the ends of the length ofwire mesh, and whereby a substantially endless belt is produced. It isparticularly proposed to secure the ends by welding. braz-- ing orsoldering in such manner that the 0 joint will have substantially thesame characteristics of porosity, flexibility and strength as the bodyof the wire mesh.

A further object is to provide a novel end structure for the wire mesh.whereby the 5 joining of the ends may be carried out in a convenient,uniform and economical manner.

Another object is to provide a seam structure which will present anincreased wearresisting surface to the suction boxes over a which thebelt passes.

ll'ith the above and other objects in view, embodiments of the inventionare shown in the accompanying drawings, and these embodiments will behereinafter more fully de- 5 scribed with reference thereto and theinvention will be finally pointed outv in the claims. 7

In the drawings:

Fig. 1 is a plan view of a portion of a p woven wire belt at the seam;

Fig. 2 is a longitudinal sectional view, taken along the line 22 of Fig.1;

Fig. 3 is a bottom plan view;

Fig. 4 is a top plan view of a modified form'of the invention; and

Fig. 5 is a sectional view, line 55 of Fig. 4.

Similar reference characters indicate corresponding parts throughout theseveral figures of the drawings.

Referring particularly to Figs. 1 to 3 of the drawings there is shown,greatly enlarged, a portion of the two ends of the wire cloth which areseamed together to form a belt, the portion. as shown. representing apiece of the belt which in its actual size is. about of an inch inwidth. The wire cloth consists of warp wires 10 and weftwires 11 ofbrass, bronze, or other suitable material for the purpose. The end wefttaken along the wire at one end of the cloth is removed and the warpwire ends which would normally be above the weft wire are bentdownwardly as at 12. so that they are in line with the other warp wireends, and are preferably curved. as shown, thus presenting a continuousupwardly disposed bearing forming a recess or groove along the edge ofthe belt. The end weft wire 13 at the other end of the belt is thereuponengaged in the bearing groove formed by the warp ends atthe opposed end.the warp ends of one end being disposed between the warp ends of theother, and in this relation the ends of the belt are brazed, welded orsoldered together.

lVhile th'c brazing, welding or soldering may be done in any suitablemanner, I preferably provide solder coated end wire 13 inserted in theend of the cloth in subs-titut-ion of a removed end weft wire, and whichupon the application of heat will produce solder joints at the points ofintersection with the Warp wire ends, this method resulting in a strong,uniform union along the entire width. of the belt, the intersticesbetween the wires being at the same time maintained free of lumpy spots.

The seam 0r jointure according to my invention may be produced withfacility, speed, and economy. and will have substantially the samestrength. flexibility and po-- rosity as the body of the wire mesh. Thewarp wire ends underlying the end weft wire provide an increased wearresisting surface so that the seam will not be subject to excessive w irand breakage through engagement with the suction boxes.

In Figs. 4 and 5 I have illustrated a modified form of the invention. inwhich the end weft wires are removed at both ends of the belt, the warpends at one end which would normally be beneath the weft wire beingbent, as at ll. so that they are in line with the other warp ends. whilethe warp ends at the other end which would normally be above thewcft.wire are bent, as at 15, so that they are in line with the other warpends- One end of the belt is thus provided with an upwardly offsethearing at the under side, while the other end is provided with adownwardly ofi'set bearing at the upper side. These ends are overlappedwith the warp wire ends staggered and with a weft wirc'lG engaged withthe opposed bearings, and are joined by b 'azing, soldering or welding.The weft wire 16 is preferably solder coated, so that upon theapplication of heat solder joints will be produced at the points ofintersection with the warp wire ends.

I have illustrated and described-preferred and satisfactory embodimentsof the invention, but it will be obvious that changes may he madetherein within the spirit and scope thereof, as defined in the appendedclaims.

Having thus described my invention what I claim and desire to secure byLetters Patent is 1. In a wire cloth belt, a length of woven wire clothcomprising warp and weft wires and having its ends adjacent, all of thewarp wire ends at one end of said length of cloth being disposed in linewith each other and engaged at one side of a weft wire at the other endof the cloth. and means connecting said warp wire ends to said weftwire.

2. In a wire cloth belt. a length of woven wire cloth comprising warpand weft wires and having its ends adjacent. the warp wire ends at oneend of said length of cloth being disposed in line with each other andhaving a bearing surface disposed upwardly and extending across thewidth of the belt. said bearing surface being engaged by a weft wire atthe other end of the cloth, said warp wire ends being connected to saidweft wire by a heat-produced metallic union.

3. In a wire cloth belt, a length of woven wire cloth comprising warpand weft wires and having its ends adjacent, the warp wire ends atone'end'of said length of cloth being disposed in line with each otherand having av bearing surface disposed upwardly, the

warp wire ends at the other end being disposed in line with each otherand having a bearing surface disposed downwardly, and a weft wireengaged with said bearing surfaces between said warp wire endsand'conneeted thereto by a heat-produced metallic union.

4. In a wire cloth belt, a length of woven wire cloth comprising warpand weft wires and having ts ends adjacent, the warp wire ends at oneend of said length of cloth being disposed in line with each other andhaving a grooved bearing surface disposed upwardly and extending acrossthe width of the belt, said bearing surface being engaged by a weft wireat the other end of the cloth, said warp wire ends being connected tosaid Weft wire by a heat-produced metallic union.

In a wire cloth belt, a length of woven wire cloth comprising warp andweft wires vember, 1929.

NELSON IV. IVEBB.

